On Mon, 2010-10-25 at 13:47 +0200, Oz Nahum Tiram wrote:
> Package: linux-2.6
> Version: 2.6.32-26
> File: linux-image-2.6.32
> Severity: important
>
> *** Please type your report below this line ***
>
> Hi,
> I have a laptop which came installed with Ubuntu 9.10. I decided to
> install Debian on it. I have found that on kernels >2.6.31 the power
> manager indicated the wrong charge level. Even though the battery is
> FULLY charged, the battery indicator says it has only ~20%.
> If I installed older kernels from snapshot.debian.org I didn't have
> that problem (However font smoothing with older kernel is
> horrible...).
>
> I have seen similar bug reports in Ubuntu, but I wish this bug is
> handled also in Debian.
>
> My laptop battery info is:
> Vendor: CZCTech
> Model: U13
> Serial Number: SN0000
> info from lshw:
> description: Notebook
> product: czc
> vendor: BRUNEN IT Group
> version: 1.0
>
> *-battery
> description: Nickel Cadmium Battery
> product: Nikon Ultra Plus
> vendor: Nikon Battery
> physical id: 1
> version: 08/11/97
> serial: NI00123
> slot: Left side of System
This information reported by lshw comes from the BIOS and the battery,
and it is complete nonsense! I expect that the BIOS is providing
similarly bogus information about the charge state. But I don't know
why the ACPI battery driver would have changed the way it interprets
this.
> See thread here for example:
> http://ubuntuforums.org/showthread.php?t=1543467&page=2
This could be a similar problem, though no-one seems to specifically say
that this bug was introduced between Ubuntu 9.10 and 10.04 (i.e. between
Linux 2.6.31 and 2.6.32).
> and
> https://bugs.launchpad.net/linux/+bug/218094
[...]
That bug report is specifically about the msi-laptop driver, and was
made in 2008.
Ben.
--
Ben Hutchings
Once a job is fouled up, anything done to improve it makes it worse.